Review on KOORUI Business Computer Monitor Desktop 22", 1920X1080P, 75Hz, Blue Light Filter, Flicker-Free by Zach Becker

Not very happy: color, brightness, contrast, everything is fine. 1) A very faint 2.5 cm wide dark bar appears at the top of the screen, especially when displaying solid colors such as solid red or solid blue as the desktop background. Strangely, the bar disappears in pure white. 2) The attached instruction manual is short and lacks clarity and illustrations. Not intuitive. 3) The power button, which also doubles as a "settings button", is tricky to use as it toggles between settings with the slightest touch. This setting issue is typical of some other brands of monitors. .4) For unknown reasons, the monitor suddenly went off. I tried all possibilities, it does not turn on. Checked all electrical and HDMI connections, all ok. After a few minutes of interfering, it finally turned back on. This problem did not occur again.